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2024-07-12 - 15:11

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #a, slot #5

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackaslot5s.osadl.org (updated Thu Jul 11, 2024 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811220,0rcu_preempt19-21ksoftirqd/107:39:511
81970,0rcu_preempt3-21ksoftirqd/010:20:000
81840,0rcu_preempt13422-1kworker/0:2H07:34:550
81830,0rcu_preempt19-21ksoftirqd/107:19:331
81750,0rcu_preempt3-21ksoftirqd/007:29:370
81740,0rcu_preempt7561-21kworker/0:012:14:460
81740,0rcu_preempt3-21ksoftirqd/011:59:460
81740,0rcu_preempt3-21ksoftirqd/011:44:450
81740,0rcu_preempt3-21ksoftirqd/008:23:020
81740,0rcu_preempt3-21ksoftirqd/007:24:150
81730,0rcu_preempt3-21ksoftirqd/008:15:350
81730,0rcu_preempt3-21ksoftirqd/007:14:280
81730,0rcu_preempt11916-21diskmemload10:09:320
81710,0rcu_preempt5715-21kworker/u4:210:14:460
81710,0rcu_preempt5715-21kworker/u4:210:14:460
81710,0rcu_preempt16301-21kworker/0:011:28:290
81700,0rcu_preempt28700-21kworker/0:108:25:050
81700,0rcu_preempt1104-21kworker/0:110:36:570
81700,0rcu_preempt10802-21kworker/0:007:41:220
81690,0rcu_preempt19793-21kworker/0:107:24:350
81690,0rcu_preempt1104-21kworker/0:110:49:480
81680,0rcu_preempt3-21ksoftirqd/008:34:500
81680,0rcu_preempt3-21ksoftirqd/007:44:450
81680,0rcu_preempt14985-21kworker/0:107:49:210
10050680,0irq/346-484840010156-1kworker/0:0H12:27:310
81670,0rcu_preempt17442-21kworker/0:009:54:370
10050670,0irq/346-484840028948-1kworker/0:2H10:55:550
10050670,0irq/346-484840028948-1kworker/0:2H10:55:550
81660,0rcu_preempt3-21ksoftirqd/011:38:190
81660,0rcu_preempt3-21ksoftirqd/008:04:260
81660,0rcu_preempt20319-21apt-get10:04:260
81660,0rcu_preempt14982-21ps11:54:560
81660,0rcu_preempt1104-21kworker/0:111:11:380
81660,0rcu_preempt0-21swapper/009:25:230
81650,0rcu_preempt3-21ksoftirqd/012:29:320
81650,0rcu_preempt3-21ksoftirqd/008:29:530
81650,0rcu_preempt3-21ksoftirqd/008:09:370
81650,0rcu_preempt3-21ksoftirqd/008:09:370
205392650,0sleep19950irq/345-484840010:04:301
81640,0rcu_preempt54-21kswapd007:54:470
81640,0rcu_preempt3-21ksoftirqd/010:27:170
81630,0rcu_preempt3-21ksoftirqd/011:16:520
81630,0rcu_preempt3-21ksoftirqd/010:34:010
81630,0rcu_preempt3-21ksoftirqd/010:00:060
81630,0rcu_preempt3-21ksoftirqd/009:50:160
81630,0rcu_preempt3-21ksoftirqd/009:29:510
81630,0rcu_preempt3-21ksoftirqd/009:29:510
81630,0rcu_preempt3-21ksoftirqd/009:09:420
81620,0rcu_preempt3-21ksoftirqd/012:09:250
81620,0rcu_preempt3-21ksoftirqd/011:49:420
81620,0rcu_preempt3-21ksoftirqd/011:49:420
81620,0rcu_preempt3-21ksoftirqd/011:33:200
81620,0rcu_preempt3-21ksoftirqd/011:21:210
81620,0rcu_preempt3-21ksoftirqd/009:35:030
81620,0rcu_preempt3-21ksoftirqd/009:18:590
81620,0rcu_preempt3-21ksoftirqd/008:59:530
81620,0rcu_preempt3-21ksoftirqd/008:54:150
81610,0rcu_preempt54-21kswapd012:36:300
81610,0rcu_preempt3-21ksoftirqd/012:19:250
81610,0rcu_preempt3-21ksoftirqd/012:04:360
81610,0rcu_preempt3-21ksoftirqd/011:41:030
81610,0rcu_preempt3-21ksoftirqd/010:59:410
81610,0rcu_preempt3-21ksoftirqd/010:46:210
81610,0rcu_preempt3-21ksoftirqd/010:40:220
81610,0rcu_preempt3-21ksoftirqd/009:44:290
81610,0rcu_preempt3-21ksoftirqd/008:44:510
81610,0rcu_preempt3-21ksoftirqd/008:39:200
10050610,0irq/346-484840054-21kswapd009:19:501
81600,0rcu_preempt3-21ksoftirqd/011:05:200
81600,0rcu_preempt3-21ksoftirqd/009:42:520
81600,0rcu_preempt3-21ksoftirqd/009:19:340
10050600,0irq/346-484840054-21kswapd008:59:331
81590,0rcu_preempt3-21ksoftirqd/009:04:350
81590,0rcu_preempt0-21swapper/007:09:400
9950580,0irq/345-4848400784-21rngd10:54:501
9950580,0irq/345-4848400784-21rngd10:54:501
81580,0rcu_preempt3-21ksoftirqd/008:50:570
81580,0rcu_preempt3-21ksoftirqd/007:59:590
10050580,0irq/346-484840054-21kswapd011:34:581
10050580,0irq/346-484840054-21kswapd010:00:161
10050570,0irq/346-484840054-21kswapd010:39:401
10050560,0irq/346-484840054-21kswapd011:20:081
10050550,0irq/346-484840054-21kswapd011:44:481
10050550,0irq/346-48484000-21swapper/111:14:471
10050540,0irq/346-484840054-21kswapd010:19:591
10050540,0irq/346-48484000-21swapper/111:39:291
81530,0rcu_preempt19-21ksoftirqd/108:19:171
10050530,0irq/346-484840029045-1kworker/1:1H09:34:491
10050530,0irq/346-484840023937-21chrt10:49:541
10050530,0irq/346-484840020797-1kworker/1:4H12:09:451
10050530,0irq/346-484840013252-1kworker/1:0H11:00:181
10050510,0irq/346-484840054-21kswapd012:39:141
10050510,0irq/346-484840054-21kswapd009:40:021
10050510,0irq/346-484840012598-1kworker/1:0H12:00:091
81500,0rcu_preempt3-21ksoftirqd/007:04:240
10050500,0irq/346-484840013742-21latency_hist11:54:141
10050500,0irq/346-484840013742-21latency_hist11:54:141
81490,0rcu_preempt19-21ksoftirqd/112:29:341
10050490,0irq/346-484840054-21kswapd008:19:151
10050490,0irq/346-484840013252-1kworker/1:0H10:45:181
10050490,0irq/346-48484000-21swapper/110:18:591
10050490,0irq/346-48484000-21swapper/110:18:591
81480,0rcu_preempt19-21ksoftirqd/109:11:421
10050480,0irq/346-48484003272-1kworker/1:2H12:20:041
10050480,0irq/346-48484001949-1kworker/1:3H07:14:311
9950470,0irq/345-4848400784-21rngd10:34:291
10050470,0irq/346-48484008353-1kworker/1:0H09:14:511
10050470,0irq/346-484840012598-1kworker/1:0H11:54:371
9950460,0irq/345-48484001699migration/111:29:391
10050460,0irq/346-484840025087-1kworker/1:0H09:29:441
10050460,0irq/346-484840025087-1kworker/1:0H09:29:441
10050460,0irq/346-484840014852-21sendmail-msp07:39:151
10050460,0irq/346-484840012598-1kworker/1:0H12:05:111
10050460,0irq/346-48484001256-1kworker/1:4H11:09:451
10050460,0irq/346-484840011462-1kworker/1:1H09:54:481
4350450,0irq/32-433000002417-21dropbear08:39:321
10050450,0irq/346-484840010155-1kworker/1:0H12:28:241
10050430,0irq/346-48484000-21swapper/110:29:201
81420,0rcu_preempt19-21ksoftirqd/107:04:241
81410,0rcu_preempt16275-1kworker/1:5H07:49:321
10050410,0irq/346-48484009451-21wget09:49:271
10050410,0irq/346-48484008289-21ping07:48:201
10050410,0irq/346-4848400784-21rngd10:28:151
10050410,0irq/346-48484006404-21runrttasks11:08:101
10050400,0irq/346-484840024366-21ssh11:29:131
10050400,0irq/346-484840021319-1kworker/1:4H09:24:561
10050400,0irq/346-484840019-21ksoftirqd/108:26:371
9950390,0irq/345-48484000-21swapper/108:29:471
10050390,0irq/346-48484002961-21ssh12:19:141
10050380,0irq/346-484840054-21kswapd010:10:161
9950360,0irq/345-484840022725-21ping08:09:431
9950360,0irq/345-484840022725-21ping08:09:431
9950360,0irq/345-484840021761-21diskstats07:59:331
81360,0rcu_preempt19-21ksoftirqd/108:39:131
9950350,0irq/345-48484000-21swapper/108:04:331
81350,0rcu_preempt19-21ksoftirqd/109:44:271
9950340,0irq/345-48484008289-21ping07:26:501
81340,0rcu_preempt19-21ksoftirqd/107:57:291
81330,0rcu_preempt19-21ksoftirqd/107:34:141
10050330,0irq/346-484840054-21kswapd008:54:281
10050320,0irq/346-48484005081-1kworker/1:0H08:49:391
10050310,0irq/346-48484008353-1kworker/1:0H09:04:501
10050310,0irq/346-48484001949-1kworker/1:3H07:09:361
10050300,0irq/346-48484005081-1kworker/1:0H08:49:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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